Signal Isolators

Libratherm offers AC / DC Signal Convertor cum Isolator (Model: ISM-10), designed in 35 mm. DIN Rail compatible modules. These modules accepts AC/DC input signal and provides optically / galvanically isolated output in the form of (4-20)mA or (0-5)V or (0-10)V proportional to the input signal. Both the input and output levels have their grounds optically / galvanically isolated. Thus the process signals received from the Transducers or transmitters or Sensors can be directly connected through ISM-10 to the PLC, DCS or to any other electronics in the process industry accepting such signals, without any signal loss or ground line interference. The ZERO and SPAN presets are accessible to the user for on site calibration and matching.

Maximum 4 parallel independent outputs can be provided for single input.

Accuracy

For Thermocouple and RTD Input, the calibration of output is done for the best straight line fit to give an accuracy of +/- 0.5% of the range. For other input, the linearity depends on the input signal, where output accuracy is absolute to the input.

Calibration

On-site calibration facility through ZERO and SPAN presets accessible to the user.

Isolation

Input and Output are optically isolated for DC and frequency inputs and galvanically isolated for the AC inputs.